# How do you find the center and vertex for #-x^2 + y^2 – 2x – 2y – 9 = 0#?

##### 1 Answer

Jun 23, 2015

Centre (-1,1), vertices (-1,4) and (-1, -2)

#### Explanation:

Write the equation by completing the squares as

Or

This is an vertical hyperbola with centre at (-1,1)

Vertices would therefore be (-1, 1+3) and (-1, 1-3) that is (-1,4) and (-1,-2)